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Samsung Galaxy S21 FE Screen Replacement

Screen Replacement guide for the Samsung Galaxy S21 FE

Difficult
~65 min
23 steps

Before you begin

Tools

  • Phillips #000 screwdriver
  • Heat gun or hair dryer
  • Suction cup tool
  • Plastic prying tools
  • Spudger tool
  • Tweezers
  • SIM eject tool

Parts / materials

  • Samsung Galaxy S21 FE screen assembly with frame
  • Pre-cut back cover adhesive strips
  • 90%+ Isopropyl alcohol

Safety

  • Wear eye protection when heating glass and using prying tools.
  • Disconnect the battery immediately after opening the device to prevent electrical short circuits.
  • Do not puncture, flex, or scrape the lithium-ion battery during removal.

Overview

# Samsung Galaxy S21 FE Screen Replacement Repair Guide Action-specific screen replacement walkthrough for the Samsung Galaxy S21 FE. About 65 minutes across 23 steps. This DIY guide walks through screen replacement on the Samsung Galaxy S21 FE (Galaxy S series phone). Before you open the device, confirm the exact model number on the Samsung settings screen or rear housing so your replacement part matches the Galaxy S21 FE specifically—not a similar Galaxy S sibling. Most DIY techs finish this Samsung Galaxy S21 FE screen replacement in about 65 minutes when parts and tools are ready. Difficulty is rated advanced for this model. Recommended tools for this Samsung Galaxy S21 FE job: Phillips #000 screwdriver, Heat gun or hair dryer, Suction cup tool, Plastic prying tools, Spudger tool, Tweezers, SIM eject tool. Parts and supplies: Samsung Galaxy S21 FE screen assembly with frame, Pre-cut back cover adhesive strips, 90%+ Isopropyl alcohol. Power the Galaxy S21 FE off completely, remove SIMs/SD cards if present, and work on a clean, well-lit surface with a magnetic mat for screws. If a step feels wrong for your Samsung Galaxy S21 FE, stop and compare the connector layout to the photos in this guide. When you prefer a same-day pro repair in Seattle instead, LML Repair can handle screen replacement for this model with tested parts and a workmanship warranty.

Step-by-step

  1. 1

    Eject SIM Card Tray

    1 min

    Insert a SIM eject tool into the hole on the bottom frame edge next to the tray. Press firmly to pop the tray out, then remove it completely.

  2. 2

    Heat Rear Cover

    3 min

    Apply heat to the outer edges of the plastic back cover using a heat gun or hairdryer for 2 to 3 minutes to soften the adhesive.

  3. 3

    Slice Back Cover Adhesive

    5 min

    Attach a suction cup to the lower rear panel and pull up to create a gap. Insert an opening pick and slide it around the perimeter to cut the adhesive.

  4. 4

    Remove Rear Panel

    2 min

    Gently lift the plastic rear panel away from the frame and set it aside on a clean surface.

  5. 5

    Unscrew Wireless Coil Assembly

    3 min

    Use a Phillips #000 screwdriver to remove the screws securing the upper midframe and attached wireless charging pad.

  6. 6

    Remove Upper Midframe

    2 min

    Pry up the edges of the upper midframe using a plastic spudger and lift the assembly off the phone.

  7. 7

    Disconnect Battery Flex Cable

    1 min

    Use the pointed end of a spudger to pop the battery flex connector straight up from its motherboard socket.

  8. 8

    Unscrew Loudspeaker Module

    2 min

    Remove all Phillips screws holding the loudspeaker enclosure at the bottom of the device.

  9. 9

    Remove Loudspeaker

    2 min

    Insert a spudger under the notch of the loudspeaker housing and pry it up from the chassis.

  10. 10

    Disconnect Display and Interconnect Flex Cables

    3 min

    Pry up the display connector and both main interconnect ribbon cables from the motherboard and sub-board.

  11. 11

    Unscrew Motherboard

    2 min

    Remove the single Phillips screw holding the main circuit board to the internal frame.

  12. 12

    Extract Mainboard Assembly

    3 min

    Carefully lift the motherboard out of the frame by its edges to avoid damaging the cameras or nearby flex cables.

  13. 13

    Unscrew Sub-Board

    2 min

    Remove the Phillips screws locking the lower daughterboard and USB-C port in place.

  14. 14

    Remove Sub-Board

    2 min

    Lift the daughterboard out from the bottom bay of the frame.

  15. 15

    Remove Vibration Motor

    2 min

    Use fine-tip tweezers to gently pry the small haptic vibration motor out of its frame recess.

  16. 16

    Remove Earpiece Speaker

    3 min

    Apply light heat to the top front of the display, then pry the earpiece speaker out of the top slot using tweezers.

  17. 17

    Pry Out Battery

    5 min

    Apply high-concentration isopropyl alcohol around the battery edges to dissolve adhesive, then pry it out using a flat plastic tool.

  18. 18

    Transfer Small Parts to New Frame Assembly

    4 min

    Press the earpiece speaker and vibration motor into their corresponding slots on the replacement screen assembly frame.

  19. 19

    Secure Circuit Boards

    4 min

    Seat the sub-board and mainboard into the new screen frame and secure them with their Phillips screws.

  20. 20

    Mount Battery and Connect Ribbon Cables

    4 min

    Apply fresh adhesive tape to the battery well, place the battery into position, and snap all display and interconnect flex cables into place.

  21. 21

    Reattach Loudspeaker

    3 min

    Position the loudspeaker module over the daughterboard area and tighten all original retaining screws.

  22. 22

    Reinstall Upper Midframe

    3 min

    Reconnect the battery cable, align the upper wireless charging midframe, and drive in all remaining Phillips screws.

  23. 23

    Adhere Rear Panel

    4 min

    Clean remaining adhesive off the back cover edge, apply new pre-cut adhesive strips, and press the back cover firmly onto the phone frame.

After your Samsung Galaxy S21 FE screen replacement

Power the Galaxy S21 FE back on and test the screen replacement function before you put every screw away. Check touch/display response, charging, cameras, buttons, and wireless as relevant to this repair. If something fails after closing the device, reopen carefully and reseat the connectors for this Samsung Galaxy S21 FE job before assuming the part is defective. Keep leftover adhesive and screws labeled in case you need a second pass.

Keep learning

Explore more Samsung Galaxy S21 FE repair context in the encyclopedia, or open related DIY guides.

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